TOSOWOONG Niacinamide + Arbutin Brightening Serum 33ml — 10% Niacinamide, 7% Arbutin for Dark Spots & Hydration

TOSOWOONG Niacinamide 10% Arbutin 7% Serum is a lightweight Korean brightening serum designed to visibly reduce dark spots and even skin tone while boosting hydration for a glass-skin finish.

This concentrated 33 ml treatment combines two targeted actives—niacinamide and arbutin—with supportive hydrators and antioxidants to address uneven pigmentation without heavy texture. It absorbs quickly and layers well under sunscreen and makeup, making it practical for both morning and evening routines. Clinically tested for minimal irritation, the formula is formulated to suit a wide range of skin types, including sensitive skin.

How does this serum help fade dark spots and hyperpigmentation?

The serum pairs 10% niacinamide with 7% arbutin to target visible discoloration and reduce the appearance of age spots, post-acne marks, and sun-induced pigmentation. Niacinamide helps regulate uneven tone while arbutin works on melanin-related spots, offering a complementary approach to brighten the complexion over consistent use.

• 10% niacinamide: evens skin tone and supports barrier function.
• 7% arbutin: targets melanin-related dark areas for gradual fading.
• Pink vitamin B12 and glutathione: antioxidant support and a healthy-looking hue.

Will this feel heavy or sticky on skin during my routine?

The serum has a watery, fast-absorbing texture that leaves a weightless finish, making it easy to layer beneath moisturizers or sunscreen. It’s formulated to sink in quickly so you can continue your skincare or makeup steps without pilling or residue.

• Light, watery consistency for quick absorption.
• Compatible under makeup and multiple product layers.
• Non-greasy finish suitable for daytime use.

What moisturizing and barrier-supporting ingredients are included?

Alongside brightening actives, the serum contains hyaluronic acid, panthenol, and ceramide NP to hydrate and reinforce the skin barrier. These humectants and lipids help maintain softness and reduce transepidermal water loss while you treat discoloration.

• Hyaluronic acid for multi-level hydration.
• Panthenol (provitamin B5) to soothe and retain moisture.
• Ceramide NP to strengthen barrier resilience.

Is this safe for sensitive skin and daily use?

The formula has been clinically assessed with a low irritation score, and its balanced blend is intended for regular use across skin types. Start with a patch test if you have highly reactive skin and introduce the serum gradually, using sunscreen daily for best results when treating pigmentation.

• Clinically tested for minimal irritation.
• Suitable for morning and evening routines when combined with sun protection.
• Recommended gradual introduction for very reactive skin.

Who this product is for: TOSOWOONG Niacinamide 10% Arbutin 7% Serum is aimed at anyone seeking to reduce the appearance of dark spots and achieve a more uniform, radiant complexion—especially those who prefer lightweight textures that layer easily. It’s well suited for people with combination, oily, normal, dry, or sensitive skin looking for a targeted brightening step that also supports hydration and barrier health. If your priority is gradual, daily improvement in tone while maintaining a fresh, non-sticky finish, this serum fits into both AM and PM regimens alongside moisturizing and sun-care steps.